Latest Facebook Messenger 214 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; Redmi Note 7 Build/PKQ1.180904.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.92 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/214.0.0.20.111;] Android 9 Redmi Note 7
Mozilla/5.0 (Linux; Android 8.1.0; Nexus 5X Build/OPM7.181205.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.157 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/214.0.0.20.111;] Android 8 Nexus 5X
Mozilla/5.0 (Linux; Android 8.1.0; CAG-L22 Build/HUAWEICAG-L22; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/214.0.0.20.111;] Android 8 Y3 (2018)
Mozilla/5.0 (Linux; Android 8.0.0; WAS-LX1 Build/HUAWEIWAS-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/71.0.3578.99 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/214.0.0.20.111;] Android 8 P10 Lite
Mozilla/5.0 (Linux; Android 7.0; SM-A510F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/69.0.3497.100 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/214.0.0.20.111;] Android 7 Galaxy A5 (2016)
Mozilla/5.0 (Linux; Android 6.0.1; LG-K557 Build/MXB48T; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.157 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/214.0.0.20.111;] Android 6 Stylo 2 Plus
Mozilla/5.0 (Linux; Android 6.0.1; Le X526 Build/IIXOSOP5801910121S; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/49.0.2623.91 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/214.0.0.20.111;] Android 6 Le 2
Mozilla/5.0 (Linux; Android 4.4.2; SM-C111 Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/30.0.0.0 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/214.0.0.20.111;] Android 4 Galaxy K zoom