{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19702",
    "entityType": "User",
    "nonce": "0x84d5562b46f560a7a12fd5c308e3b2f993da750b944a8cb6ed9160a9470de791",
    "signature": "0x25dcfeb495de1217367fb3bf834c0be969916bfc02eaa379be5bf95fb4d4bc47783cd34ee95fbeec32e3c301858cb53f4a07bf0939e6d24ff53660cc8784798c1c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}