{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951995708",
    "entityType": "User",
    "nonce": "0x7af22c256aa0956d49cd443a176148c7aebcded68bb6c8bf59795009ab28a27e",
    "signature": "0x9b9b8eae9ab52f32edb4d7fb85aa3be31899658c526abf895e10426a3b655e5025e6c5d5b63778a9b624b78eced927a8c6263337427c7aafe655f79088f2f3c71b",
    "signer": "0x5d60d60f715755f8bA9dF70cf1Aeb780Cb10Fc1F",
    "userId": "343259028"
  }
}