{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281113",
    "entityType": "User",
    "nonce": "0x6b3ca9d999f27da4c83a04950fa84bb2b9ca5d93585d7893260bbbacc531bc51",
    "signature": "0x208ec8d72557b19efbd563c1551403ff07ea2dc4b8a5577b38ffc87dd6e7e44c28573e3d3f53d70652cda2cb0c75f70aea474b59ceaeb24fc74db321235f5e951b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}