{
  "manageEntity": {
    "action": "Update",
    "entityId": "708826400",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb83b08d05edc9e3f39be8339941f454ed708160564335262c6b4acff97752d59",
    "signature": "0x60b9e981dbdea082f267baf41e74cee8fbf07558864cfeaed6ab3952e75937d51959ca2673dd5e6ed976f248a4171be35bb1caf608abdfadd2b938276d2f523c1c",
    "signer": "0x744CD02597C29766323d08735AC416fc46b0976E",
    "userId": "708826400"
  }
}