{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328416",
    "entityType": "User",
    "nonce": "0x05fec53f41b14fc933fc1158111c9ae7489e06bb22d28a4c4c65858bf676ed61",
    "signature": "0xc99dc490e88907b057c9b1659884f369e695b4a0d2c94489f40d298e2013f0a4074fb7c5d32b0d00ffbf0bce98c447dd628badf3d81142a098258d5fb0aa86021b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}