{
  "manageEntity": {
    "action": "Update",
    "entityId": "563507633",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf7e494d239ac5219549f3ce84eafd38a532edf28fc8ad54e84f548d0f782afb6",
    "signature": "0x315691f775591bfbd6cd91acc224488c11e8f67e08f243e50d6a9164ab92fe104e581e1666d4b44e5a3a53157a65764c2f207aa7ac4b07d99bddf98510b937a21c",
    "signer": "0x2d45Ff20F38e74b7Fd736aCa88aEe5E051E7d242",
    "userId": "563507633"
  }
}