{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214594",
    "entityType": "User",
    "nonce": "0xb75699f6d4df4e3da27bbe58d09ea992c4c171de1f25df82e4fc24afaaa3713b",
    "signature": "0xf4417cc36dfa193f863cfd477a742f679162758af302b84ba5a79cd1bb0e78ab5b6af91a3e53948c136e7ca0bdc5bf24ebd0d464b75f014405d08f0e4c2b860d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}