{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "969012944",
    "entityType": "User",
    "nonce": "0x39711a6d09d8deaa59105545a7ccd7517153d7d201b77f1b26ba02344b366b52",
    "signature": "0xa85066a0bc9e6440f463477d6c00b0a7869ae2cdd8f4e11cb46a48cec49a5a114476cb2f5fcb13d8ce709936b0eb74065e5b878d8d21ed589f8d2b98bbe4f8a51b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}