{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385467596",
    "entityType": "User",
    "nonce": "0xe90e2eb74a1f7ceb7e216af9de0e1dd673f7b5c0be89d1537cae919d84c0b393",
    "signature": "0xb6049157e0723c92874bb809345515d41d64d56172d0257efac5c8a74da400547ddd594816106380effea884e450b89ca68d140245b50867c2459323fd0691871b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}