{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "295478826",
    "entityType": "User",
    "nonce": "0x4555d78ca0257688083987af94f6803763c18abc0f03df62b70136f052b590c9",
    "signature": "0xf430001fcc885d4bc5a12dd05043b0c4b35d27c51144ca801219f11db020e53a0d9fefe98be15b5fc51b8f4b4b54929b0f8e2429e4600b881ed7b3daf8bb10ea1b",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}