{
  "manageEntity": {
    "action": "Update",
    "entityId": "715573876",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcba81db8d3e95bd7f9645081b279a666fb80717469e7c51b163088d40ff4987d",
    "signature": "0x3753296044bfc03dcba0ba79bfd0c4688543e14d49051c02db9da6695893217e0f6469f619a20b0dcdfa9c01f21f2e257fa901f71f6379cac34fe030fb1315351c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}