{
  "manageEntity": {
    "action": "Update",
    "entityId": "622722130",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraq4oofwsyev3ncn7ershd4hfpyjn55r4wubbugfiwgz7os4rvhuza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":918184430},{\"type\":\"playlist\",\"playlist_id\":139342656}]}}}",
    "nonce": "0x0f47b5232ee02021fd76a64b106f0de668534b080ee38169f21b5d0296b5577c",
    "signature": "0xb9f1b9839ec129cebd3c10806d620a9c9ef806c9dbb4c05b810253b380f151fa7001fe5a80fe7943543b46ada7c6ec925d7c9fe19318f45768ddc46273889e051c",
    "signer": "0x9861bBD8DaBC2D1197dB75a1309CcDdD9Dd03354",
    "userId": "622722130"
  }
}