{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3124",
    "entityType": "User",
    "nonce": "0xfea4d1d636e795e35ed2eb202e1bf44263af3489c98987d0b73255b54fb26185",
    "signature": "0x23f7cc51dde673aeb6f4ac2fbbcf6b9a712c9373ee69a2962735445d90152d3d2da1f41e5996b4f675438ebdd31ff3f4bdb067bab907180aeec81c512253b16e1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}