{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "279392",
    "entityType": "User",
    "nonce": "0xb51f11be7996c2a126b2e69732ae2683552f800eb637a52d9f4866709aa12bca",
    "signature": "0x212a53e1f501be102058e58571bbf894eec6b58c534d7cf9a8c779a691679f302282afdb0c4bac163b8d1a4e7ce17495cc67689f33c62829e28ee5401ab2801c1c",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}