{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956241273",
    "entityType": "User",
    "nonce": "0xe33b56c1dc194ce191577789b3ea9be359639a7021ff5be9aa281476c067de95",
    "signature": "0x644afdb2bb9d7a962ed016dc82ee630e76b47d47832f16222723a582f327e9f6534584e063a67badc6a56b45935467d458af0bda2beff8691d210729d33768fa1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}