{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "829862826",
    "entityType": "User",
    "nonce": "0x87d2149ec304abb49347d9adfff55d19c37ffc09e4b16702e27100b33f804c84",
    "signature": "0xcb2aab7d7bcb4a1100d032c3ecf977609196fb432af6a763abf5249f431a2dd529de67840e808e684f700b7e60e88d1ba126441a017f2fb6c052b0cf5116e23d1c",
    "signer": "0x6B239e9B75f27b519de7Bad3a26a0b7d30e32D3f",
    "userId": "311257477"
  }
}