{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617080322",
    "entityType": "User",
    "nonce": "0x422eb2bae5f9fbf6a25d51ea5f9659f8a994c5a2f02f113a146acf1b960c3619",
    "signature": "0xd2325871dc92a73d38f4918547f4a7fee9fe2ce5ab1b6b7aa9627348366712a3243be10a54f80279a8f1f5d54024ca717f23ce92b33ce120c46a478e6ff5cada1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}