{
  "manageEntity": {
    "action": "Update",
    "entityId": "58600206",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x69fc04dac77829e0020c9a9b3f66ad9cbd75afb2f86b8cf3f9a71c03bcfc7cd8",
    "signature": "0xc4c77b98362e1fe55e2dba547726b640219b94e8d5eb61004bc30579041db39242e3841f263cc8c570b23c1fabee168a2911eff85de46a79ff4ab4d0819161331b",
    "signer": "0x7D89eD1c2C9744b86AE1D1301E8F342289D2f3cB",
    "userId": "58600206"
  }
}