{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "458118601",
    "entityType": "User",
    "nonce": "0x39702eb36836cf3165b42e8c1e437899115a617d13a1f228d6fa8fd1e7bffdd7",
    "signature": "0x4c1003686cc0f6298730a59b93a1da183ba0ce2a34a3d260a06567c7e55304cc3a2787ed6b726272557d010c107282289fb0e8b3f88758abea4376a50afc558b1c",
    "signer": "0x5391496E932a3143AeB225d332e3485D8f3f2a2D",
    "userId": "712969344"
  }
}