{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "622213260",
    "entityType": "User",
    "nonce": "0x9d2295e6cabfc0a93d5512f199242b0c3f73b1d9d566f56e7e8d8c1c9c84b9ff",
    "signature": "0xa0f8a0eb5685bb694c485a6299d1c76ca7b2ce97afc2828b2eb1999d41145e03410fae7ca42a25833981a69e5ec2b4babd81f22b5906ad82488f6f74e1063ddd1b",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}