{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x60c65f2d3b3a0d546f23f7e2d5db53bbdda5014d65be6884a8cd613ac060cd68",
    "signature": "0xb4b0a76d1c1f3754a4b0e2dc2607eb5e90a4f1d15ea925093391ad8524c2d2bf50e9dc6ee487bc51f8cbbe15f36aeea5de78190088d4124807f1066c9874adf31c",
    "signer": "0xa994b8dF5782f9A03370955CD9107820F30cD6Ca",
    "userId": "283342965"
  }
}