{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319004",
    "entityType": "User",
    "nonce": "0x0fab90eda961ab1004c63323be93f9d35c0210385b8bf2ab3784f6ade0a2cb10",
    "signature": "0x7a50082ed82dd63f89602a90085871b2d3be3a8a1a3c60c88ed751ce32d81a5a7241d406fc0c7bd325df4dfc71fe0029f2868ce368db8b362c65e4b4aab8d4da1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}