{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "299214",
    "entityType": "User",
    "nonce": "0xe27b4cfbe941befb05ebabb634f62052fbd261f06b2b1b8785112af3b3588bb4",
    "signature": "0xe68802467d1f1bbbefafd2c159048bb648b21c45f80374d7ffe2658b72867d567307c3f27671882a777da70c640ad8b9e57033829d364c3642594253305aeb7c1c",
    "signer": "0x14693D3dDF26e0e70845c87CddaC0E2F4692c710",
    "userId": "553005221"
  }
}