{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "232897",
    "entityType": "User",
    "nonce": "0xf9a11d2807f8d7783eae033e3b4b17ebd9867ede41b0650104b1a6d990e5217c",
    "signature": "0x9ad964a04845931265144ed2d1fb4a415f40dbd1798ae78d284dd10811de589c6a3e3a12930bc59021ff04b377d0b7018c3a2ffbf3d04a1bb0a5018726e4fcef1c",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}