{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "632080262",
    "entityType": "User",
    "nonce": "0xe39f706c7e4103ddd2086569f5ebfac9acf3a1bd3a08513f48c5d8b2e2b5b2f9",
    "signature": "0x53d2dd600519c8f4494ba0ae1c6197bef180c2d6287edd80ee8f686624c2df4d1c009da8adba214e4d24b6d8d35aa2f7a9e649d05e159738f69dfbd49724c4821c",
    "signer": "0x4C0e8973cC8C5BB66d6627C8D489e336f0825A94",
    "userId": "939865626"
  }
}