{
  "manageEntity": {
    "action": "Update",
    "entityId": "281853382",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf15133b353ed287999fb43cc9c011e855e24fc47dcd78803188339f9a4a5c46b",
    "signature": "0xb7e7a96aec649e2d4a18faea498f9276a2696024d7c2264156cbba34405329753455b5eaf74b8bd50b729af260754e69d3bd5007d3b543c80d48ff77c16bd4b21b",
    "signer": "0x7BABCBfac3652c0401f5f7C4c5d13Db162EC2f83",
    "userId": "281853382"
  }
}