{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "288893913",
    "entityType": "User",
    "nonce": "0x35212ce693479b711dbe65ad49abe9d0e0a39b63ca623367d9479b78ab5a4957",
    "signature": "0x85b286ef099827269a0d24c7dc92692b599afc96a5ff422fbbe79f046fda2f5910aa56c803fec2559d8d41ebfef100ab1bd7ff391fbd0bcdca8de00b0a6a532d1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}