{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x2ec303944378900dd23393f4cea4c53e703b9f4991568a25cf8af184b8b924ec",
    "signature": "0xd216c6ad1001ce7a6ea94bc724496cca6b90b45c829d63ff84f906ed0d3ace1509ed076066417365e237372bbf727dc1bb3d78e2fec4f256f0824c72c91de66d1c",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}