{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305838",
    "entityType": "User",
    "nonce": "0x2aa0577c4c0f346db7572ff70014a40cdfed24776b952fe17aaed9f0990a2299",
    "signature": "0x4ae78c23a4cf292259a165b37a1e05882a303d63c7fc08e7fa702fe23376774e752623159b252763d6d9403f71cc511c031525b497012b2e3122c1939e49040d1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}