{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "773429398",
    "entityType": "User",
    "nonce": "0x82e17426e3058934cc706ac3a5876465f9fb29d6091961e271ede22844155c5a",
    "signature": "0x35b6c6a8a2fe42ff10390ba3d3765173cf52d651c0e03c0c97a061a2b11620c15ccd2c1dad3d34b5b1d08076a558ecdffe58580b398fc7610d2b8c0e6739641c1b",
    "signer": "0xfC070d9d02c152146e3D1B2cD4B03FD7a3CA1AB0",
    "userId": "539537193"
  }
}