{
  "manageEntity": {
    "action": "Update",
    "entityId": "586626654",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc9348923d50167e7936973cf0a124d9f94aaaf521ac26d0cc27c4c5fb18caa66",
    "signature": "0xd4d780d1e851266078d8cdeae65d64761f2a2846bcdb3d2f3170256cde64c7ed6ad576a028d2ed5692d78dff19df46f7d315b2d3763dccfd31e7b66dc8e5b63d1c",
    "signer": "0xf21b3072f43dF317d8C9C0e4eB5c6204d87E89A7",
    "userId": "586626654"
  }
}