{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "844754103",
    "entityType": "User",
    "nonce": "0xc1c57932dce7b593b0e713c7ced18b34a538f2f437026d781806d06e03df78b0",
    "signature": "0xfef56f9680c92353e78307dc9e1c2a2518e77c49568b572c4261079a8530e43f3f31db8048e36d943af1106a4cf7e551ce2066a64e7300021c7ba51a13d6be911b",
    "signer": "0xDc3E8455192174BB859F815e8840855e17449589",
    "userId": "267643931"
  }
}