{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1512820",
    "entityType": "User",
    "nonce": "0x847979545109bdf294980c5ea27e4ba7dbcc6ca1021ee226fc1cd9b9ad563186",
    "signature": "0x4c8a5c02125615f88d796362359a9e423f58d1153f4cf4b5a53d695a0f7614f60dd166a72924141e8c9ca8c01335edf917bcad4bf2dc1901b2df479e3f3b8ad11c",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}