{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "654087878",
    "entityType": "User",
    "nonce": "0x61fd0a89d766204bcafaa7724b2fc815dfdb3097a14703dce5b70fb200f71673",
    "signature": "0x09179087955c4c8bbf87f2674ba9dd0b68ff1f7b151962ceee19880b9346145363406217bb865409f1f8d37d1c21e21c32e2baaad7cfb3b5a16178f81b6f50e31c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}