{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xdd69596564acce856e0b63146e0c88791fe05464ba97199e32c944665b746582",
    "signature": "0x62e6581b974240e24edc387a7fe5aab173fcfd7e4b8e7083e44f030c086068dd6f8aac34a06e6225d642e34b3525b5dd00c66c4a6c68becbd571068f06b18c931b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}