{
  "manageEntity": {
    "action": "Update",
    "entityId": "685706656",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb375fbd183841eca4c0a155b92f6b3186b77f605d40a31a723b1a83ccc8498e6",
    "signature": "0x4f52d83fc80532a95991a1a23446d72d3e0d5eaeec4103acf41d93609b54c8d61b3f6efcc4b02e6225c80196fb85abf2b5ea96bb7f154c9d88432e31c6dc0a391c",
    "signer": "0x4a5fA5326FA8D8BA8c06F330B8e7AA7A2e63D3FB",
    "userId": "685706656"
  }
}