{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1889268",
    "entityType": "User",
    "nonce": "0x1a32f1f37a39e066c1df5ffdd6518ed7829b76f0a92a49d7a68a8edc897d4280",
    "signature": "0x9985a82bd22e46c7ffdb085951c08de6e6394fdba5b7636b490bdc8cfd19f63c25326b7e04a8fcf8701d4dc17c79c7fa1b6c4292fe0ae74d5918ab99e71aefee1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}