{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x305b8990cda830061e90a09c98a4d42bc0e7e899eff798cc9db9683601d573da",
    "signature": "0xed1840d6a819a0d6b96fa6cd7eff03499e33cadc1b65ebfa851cd907f58abc95522a1bc3d7bc376ff8d7b4a211ab80978629df9b392e1a346180f177fa83eb381b",
    "signer": "0x5D2FcEB6995f043Da8377A1C642D3AF87aA3a2b4",
    "userId": "186322118"
  }
}