{
  "manageEntity": {
    "action": "Update",
    "entityId": "366722698",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraibewcuolowmsxfjpfdmzchpxs22lb3zsovu2lmjrgfmrdaftjisa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1400077687}]}}}",
    "nonce": "0x9830744a71484184f61e21443051cfd022fea1bec3bf817a8a19a52c3688d00e",
    "signature": "0x77690ed5cb1a570713b3907d897b09c3c6843c60a702297c5ca45c7d580a9b4b05ba24afde4afd86097c7597c79ba8538f14809759fd2b391fc62b026f675ff81b",
    "signer": "0x633d9F446E645E4a4Da529CB996A34Fc6599F64A",
    "userId": "366722698"
  }
}