{
  "manageEntity": {
    "action": "Update",
    "entityId": "12879587",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4fd588a359e5799a2dabc9546a6a18263c361e41440ec252add9f26d8ed1fe45",
    "signature": "0xcadc03285ad11f59ecc6fe24cbcf7a925fd8515a5b7525bbc7b0a42df2ceb47f72bb395b92f096056e4b29eb63e7b6ffe70d8bd9919e3a777dd3d24dda91fb051b",
    "signer": "0x96f5e8f4C153CA2D7adf156D1E4f5c552d1C2F68",
    "userId": "12879587"
  }
}