{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcd0c4805f1d716d260795e00085507481c31663591f6cf782073e15dc872bc7b",
    "signature": "0x341c0126025e212d1c32e27c6b9c36b4ac7bc161554147bc9abb016fe11294c73f8a80d4dfa9d2c8501675813dd62d9a1b5304daac16f474b43d24e25fa7c7fc1b",
    "signer": "0xf511061791F4DCa2DA55d4e584322c783d211864",
    "userId": "849806236"
  }
}