{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123170",
    "entityType": "User",
    "nonce": "0x88c910eb17f1203a143978c712eaba5ea77f2c69635fa75a4f987ef36686bdb9",
    "signature": "0xe6c8c00445015ced466ae3182b5b88dc7d423e471581978580fd780b4fd7fcda1074839f61da58408ad106d1ab5a365bc041d51b2d7142d83686549fde8054521c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}