{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55875",
    "entityType": "User",
    "nonce": "0x1a691cc1a721dd300288c448fba21917ada354d70c56b595882da69e948dee57",
    "signature": "0xde0baa1f4866994d52282a2eea05b7873d27217cbf0eb769fd8ddb9ff382c9281a95b6341e536f3ec2ee23d6f943a8aa1483c4d534145345a6fa42599a00471c1b",
    "signer": "0x6CDDC7B674Dd0fbE8fB2850B79b97aA2A37Aa071",
    "userId": "218692613"
  }
}