{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "900325196",
    "entityType": "User",
    "nonce": "0xda1d215e625c00d91f35dc42ffa5e138a66043df861560752329d0a7fac99fba",
    "signature": "0xfb3f480f2f6b4604fe7f10afe6e4a849392df3493612168b17a44186589b682e3ae049987c0550e2dc8993f8620f0087e81c0490f672caf04433731d4df8c24c1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}