{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10318205",
    "entityType": "User",
    "nonce": "0x144c73cfd4719a8752be44858d597ca55e9ba5f31d72260a4ab6f66c3c274b79",
    "signature": "0xb6e4b8b5a89a5994e6b1f1eb71ac4ab25e20e9830e98bdefb67f60ca5d9a146264d6c799802124ca9663793564e765c6f0adc1afa33a212daab1d00a1f9feea71c",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}