{
  "manageEntity": {
    "action": "Update",
    "entityId": "479039338",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4f2f21822bf4a3ce36bea3ce4dec5b9ad2885442510a26a34ec220984d2f20c0",
    "signature": "0x3ba88b3cc31965df4dc1e7785492398b7bda9174d2f1b88cc42c306ed7f2d87d6c3182bb9369cd4790c320c106b0d435d8084481ff45c9732ba4ccdfd8016e171c",
    "signer": "0xDA5EF39662B4ef70B52C25F33b5637165C93DE3c",
    "userId": "479039338"
  }
}