{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "901788935",
    "entityType": "User",
    "nonce": "0xbda01a64793b853da715b52d9a754997f3d51cbb87509f8edd860a3de71e36ca",
    "signature": "0x06be8fe98c0544ab885572840413f42aa2e03173919dc0a5c9238df364746e03603e424391e748826bbf82c005f2ffc9123773a0eca140a4bc8f5b2a47b8a1d01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}