{
  "manageEntity": {
    "action": "Update",
    "entityId": "941395258",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa8c53ce767fa2e7b0b3dca5a430e319f324562b7dabf893605033a2bc5979523",
    "signature": "0xc5cb5f3ace7bd3cebd28132071916511022f7558677553ab96c1bfbe3bcb00b02c402b4e0284da214d34e44da1266d7295789405a675d24a0ba8732857029aef1c",
    "signer": "0xe6a53Ca37D739E3ba1b0794353D018D0FDe60BA1",
    "userId": "941395258"
  }
}