{
  "manageEntity": {
    "action": "Update",
    "entityId": "1474453",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraxeehru4ohg4iz4c43niscp35iikwc7rlgn64ixpuk6s2of5m6l3q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":2128641561},{\"type\":\"playlist\",\"playlist_id\":630530363},{\"type\":\"playlist\",\"playlist_id\":2013618868},{\"type\":\"playlist\",\"playlist_id\":1989321699}]}}}",
    "nonce": "0x02bc81e4b4e9180a4e181176c07758b26ed9882af8e51c902c2b429f3bdeb2ea",
    "signature": "0xbd3d4b252cb2b9eae0ed18fc1530e60cc2852860e2b7553d3f18fd8a352f1e1749c211e268c970ac6f9e4c9eac483df4b749d75c4f867b5a5f1529f84fbeb9eb1b",
    "signer": "0xeDae8fbdB2a56d77Fc35eaC72D7c338eba53388b",
    "userId": "1474453"
  }
}