{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7504",
    "entityType": "User",
    "nonce": "0x42e569f37e2e9144230cd87a249d14cd594e717980c950e8cfd8c7c11d84036b",
    "signature": "0x4751968c571a5b70b6c53d1b7f164d90674610b423b76195abddef408edbf9413eaf41da2a34a685150a8c211ae898209dbd2e323a5d2acdc7bd1ca6ce9ccde11b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}