{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923028519",
    "entityType": "User",
    "nonce": "0x3783676b5cea8f003f549a1a07c76a25dfcc1c46e83d4722e315f317d9731297",
    "signature": "0x104a904547f089897bce43223b89d1338e871ff609f2cfaeed1311c16aa0c6c139ff0ad62d32dd34f55d4ea1972cf09951e04a475f96bf007e507ad2874f69101b",
    "signer": "0x12705C8Fe8CE886CeFEFa0d4d46E906f2c35C954",
    "userId": "477934274"
  }
}