{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xbb2d0af3113951945dccce51d3d43971949e84160c757c68ed13fa0e95eef892",
    "signature": "0x2377f2d583d7b0ee8fd090802037c62edf8c6ac613bba72834fce936eb8275ed2904d262789b5aea146b8d4fa55d4e3e8fae256d4bb74787a6fea03af9dc57611c",
    "signer": "0x4DDd196F82e57869E706Fd10381a359418B104Bb",
    "userId": "585727851"
  }
}