{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xba800e668bcbe7c3ca529162f62d1fb2db41f82602e976599dbfead9993b6776",
    "signature": "0xec2286365dc6833586ff472392a981767273b2d2236c2eef7ef2ef7035d68e580cbd5fb364c689d09692e3454aaa8d64f6de4fb17a5fe2bf3b53a8e91435bc441c",
    "signer": "0xd4172DACb313eb72C6Ee29bc685450908f4A1926",
    "userId": "407046354"
  }
}