{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315121",
    "entityType": "User",
    "nonce": "0x0b6629ae9b219fa6ad91f86a086f4177ca31d66171f662d7f2025324c5dd76e9",
    "signature": "0xfef3f7f008f5776062414db5ab4e4e7d0c1a4819a969e260e30b8a7663325f7860e2b31c7759669b73a1ce7d4ab0d4ff36925a088ae2587407e3ae55be6e69121b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}