{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2016389",
    "entityType": "User",
    "nonce": "0xa397a7a249014e2f58a9897e9a67713f377f96d603c24083c78d9cd28d9c49a2",
    "signature": "0xfb55d3a933d5de9d53b459a5fca2c6567eda82ee70dde48a88104faad1f86716685b021a9c82c1f59beabf91c59f35b1c27753afb5e7fbe5f0cd69f18263a0501c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}