{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1717913",
    "entityType": "User",
    "nonce": "0xc5ae2ec8987c716ca2fbcdbd9595f4839dffaa896f4534e38f2b552e0b9b2288",
    "signature": "0xd8f741ee93ccc080403bf1f8b35fc8c0461315b43a3545eca7073b3978ecc46361dd1c0f9096f1674223efe0fe24d234f259cf517c8464aa1110465e41415c3c1c",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}