{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1455057",
    "entityType": "User",
    "nonce": "0xa82e4aaeb82be6728eb7ac0dea0846075becf0d9e4b0b8e37aacd953f774af77",
    "signature": "0x614389901408c3651a29e2c79ef13be3ad89c9b664088c8e5bb0b3e01a2c89052b5dd3820ca5d74bab180ed39231053861098660b655d97decb67e86a687ad131b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}