{
  "manageEntity": {
    "action": "Update",
    "entityId": "733215727",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb307de9d5f874f95dbe99fe5c8a7a5a7b37b9ad0db4f21adce07e81ed4d66406",
    "signature": "0x76de30cc3fc576daf18e67ef18c80cb605cb664ba4eb003e515904688ae9636903721e365a468920e19c590b67c1c7e597a0002f09a0bf45ced446989e42d2331b",
    "signer": "0xA275D81CF2e99e1CBCEEA244Fa82421501e665Bb",
    "userId": "733215727"
  }
}