{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1957",
    "entityType": "User",
    "nonce": "0x4b3485131bbeed4920d51f990c6f0e3a2b8efc560bbe03c69bd677fa11950ede",
    "signature": "0x5265dac3310db0965f8f47dd8e300eb47eab2c9002272f1e4275ff7550b00e22166c6e5a36261a9af4777af690a7cc528e7b837a609479c1401e9158fd7f376c1c",
    "signer": "0xb070972972ef5B5E404741ADCAc11792d96Aa436",
    "userId": "228777558"
  }
}