{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x6539861f42eb4c88adff8cc25fe1b6f2a796ef9b9c1ee9b321bff9bd6d7ddec8",
    "signature": "0x5f012ecf5136d375f77e735c89278695984c5e020cdcfb4805f3d2cb7a654fd96407d0e0ce58569cc5a1f49432bf217286f88962e2d63cf30c2ba9a5ab1aa5401b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}