{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xec5bdce5b6b3fe72c1820a23cd9e8b47359e86e83b2ac76915d515b401b9ad70",
    "signature": "0x8cd0844854a0e8e478efa1a9e16dfd105622ce9cbb07b41ba300de6f965d9f8d4f28df7de7d875bad8df28985792f15717c922d6e23391c9fd35aea7987cd9361b",
    "signer": "0xDB8E6C52ccD85f623587229edfe3f082A690a054",
    "userId": "352020365"
  }
}