{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "551451362",
    "entityType": "User",
    "nonce": "0x7b364a5e595bb848893b8e02d12fa863f693ae00106ecbfdf723f7d8b4b72ae2",
    "signature": "0x9ca2c379ec2d51ec0cf852941e7fda336ea30c5d8b332156d0c80c2dc14b3ef81f415785651b7b1d09446796a0e3be0db31539230d456a16233166650b481bce1c",
    "signer": "0xa24498458c4D424889FfEaE6EdB476c8E35C41BD",
    "userId": "787951188"
  }
}