{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x247a212679015b578af4a28539ef955a65df1dc7de59a97e5126b2d2529a767a",
    "signature": "0x9227643f86c7b64df082efe2a74b4f6e6d8283d37fcd7b0b9897c8bcb33bf3341703aa2ddb8acaeaf4972ddb2d9e2ef764b7839188014c1fb10942361b9903ef1c",
    "signer": "0x28348578D94c03b9B8E5F1d6D2668867ad2d55cD",
    "userId": "383993807"
  }
}