{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16112",
    "entityType": "User",
    "nonce": "0xa2a410afbb537eb6a7c727e72bc39f8cb20bfc77ed25470f7b2de4c8b120ebca",
    "signature": "0x2b4627660bb200a7f12d164822358d0980d863cc2d5ed57aa89086e5edc8b7566ba0c8fed8d93163cfd2027f41d279087d15fae3fe7f4c2e76f0bdb88d7c0a321c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}