{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "704544",
    "entityType": "User",
    "nonce": "0x84dd1f7381db35eeb97b070bafb814536832aa6a865a3f1b82fb445979864013",
    "signature": "0x40103d70539fb498ea61fc385d3307cad7e8e214266296f3b23920bf212dc11f6e1f13b875dd90d3e8ed776035099ef81930c90f6e9f151682e45df7d01853c71c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}