{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "179782",
    "entityType": "User",
    "nonce": "0xf8e2a83e28d181411e8a4b9fe855d98ce7af8c3ac0e52222a29f0a7d8fb8888e",
    "signature": "0xddd88d64f254c3005cc0a1b16144bb971f696bfcb573d02be812b36dcf8a8230578b2fdfece2255fe352fa2fab626f1bb7c044255c956ac4affa0c332fdadfb61c",
    "signer": "0x64F598C81c0625EA190d421bEe9C604A9EaD5ea6",
    "userId": "462839245"
  }
}