{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5d1d2b909f39478c81a85826a7104bca0792b80abf765f49595bcae3faf38a57",
    "signature": "0x3055b80eb4bbb41b6c630cdd0612ff173f2d6d1e6164df5e3e30b8d6559b5cbb2f059cd4f6149262599a96551484764043392e7c908bbaa01c42657c65fdac341b",
    "signer": "0x83968a6b9255Ed8eBc57cF77a69694Dc70d13C61",
    "userId": "103803867"
  }
}