{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "712826",
    "entityType": "User",
    "nonce": "0x604e096eb08798a1c0cb8f72844d0c6707f7e8e011b6c2a7e6499fb1fe7d975c",
    "signature": "0xd0210737e03ad8a90c18d46cb23b19da1cac00d1e326d1910c44f29ae9fac7202a425f0d0a9421f0e397bd57c64d0aa6f95e2df33c1b2a9130135734852825f41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}