{
  "manageEntity": {
    "action": "Update",
    "entityId": "593681853",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf77610f505aa895332db7724e08262eac75f3131d718a5e8b51a0f875ce1df38",
    "signature": "0x378eb3eecd1c30d44c428dc8bc20dc095f9f7a2697493586dd4aa8c85090b9e9127764495f77675cfbc9e1d88c22197c4cf2ddf4d0677fb7cb271977de052ffa1c",
    "signer": "0xA07bE008930F709298D5Af61a1862CE5190F662B",
    "userId": "593681853"
  }
}