{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x326de870cdf8be603c067ca5f49d0f352aeb1ae27401a1da79969e7e8eb0b4fa",
    "signature": "0xeec495c2429a9f0f453fdd2293f960a3597042cdad34402b0050a02c1a9b784b703071d2b53109d600b034d412bde5170b3ab7ffc7e5bc188e65bfd131051c9c1c",
    "signer": "0x04776FDD97df04340480e75C0DC68Cd805F19DE7",
    "userId": "713691257"
  }
}