{
  "manageEntity": {
    "action": "Update",
    "entityId": "700236399",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2yy3xsa2gqed2pzyedcppfh2zs2dyijwh4r5cdzmlq25turm4srq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":552525871}]}}}",
    "nonce": "0x45e8aa90e865548132376f194a155b57f2fd7e80d09da7dfb657f0f47a1b7b5c",
    "signature": "0xf2c0b1d469ef8421d1394b3cfc6f655e29173191b8ab8532a2d8c3e5b92574de344efbb2ca331a9b2724c69a523c884c9b466356f0d3ff8cf12a85252b56b2e51b",
    "signer": "0x00679AE761C2F87aC8a554140d0533e86E36C62e",
    "userId": "700236399"
  }
}