{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x812c5a7254a3bcc333e0aaf7669ef1dd9ed98232d67d9dd08639b0a1651b5d99",
    "signature": "0x9c1ceb3367c052808859e8a4f49e7be4b1a20d4d03394293977fddcbd0e16c2a180c57e241bf987ae0473c2decae050c5bb973d73a4992d72991340d8d3ecbda1c",
    "signer": "0xaF260D56498a2d61b204aBc5CAdCbEc98465d11b",
    "userId": "219894195"
  }
}