{
  "manageEntity": {
    "action": "Update",
    "entityId": "103931016",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe9c9f3def7a7b294e4a6e5ab9bba9fd4a6ba1b0d4b35513dc586caf3e8175ca3",
    "signature": "0x26394ee8dcecdd916a4a4614ef6cd7d2d3e4c30a07b48d4518de1f00a408a5e938379e1d6be62629da4fa7df4125503dbafa046a0a8f1ac365671ab4caadcb4a1b",
    "signer": "0x5f2CeEE91c8826621E0Dca9853a13269C73c064e",
    "userId": "103931016"
  }
}