{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1",
    "entityType": "User",
    "nonce": "0xfc08390cf0952d5956afc814e6eee3fd981f7556d3d9f7376c6f58fe3865427e",
    "signature": "0x2c396f91dacf169ddf7e3d21bec883606706cf8f92b316e501eb26afd60f304c011ca5b8f281d7408db31e63de84a8cd6561b4630a93a929c0cf81a1d13334871c",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}