{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x63931feb9a34ed218d2ef5af580501828d74299c10c06fef743a5afb20e1ecc1",
    "signature": "0x8971374c5a46c6b36fd0b09219be2adb106880b006b76964b915c26460a3dd826483d12216eece2f0573778a3a887d5394e8d960a6e4cdb55108e6e6bbcbc9c11c",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}