{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346656",
    "entityType": "User",
    "nonce": "0xf7b74737677d4d312012a0950e4ebe8b5c19cbb8f9441bbad0aae60a1ac765da",
    "signature": "0xd20827b894e213a0774ed66551e293c812a001d79e406f50dfb0bc4fa8fd4bbf4e56ec604ef4092398e323f83fce3c961e742115b570e8fe1367636f71a0e5d21b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}