{
  "manageEntity": {
    "action": "Update",
    "entityId": "691095857",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5ae466333abcaee6e13a39c331c1df1b14cd56347d27c096c18ab04d71f08380",
    "signature": "0xfb01fa4f6aa1d76e2f8f33c8e0d8ddc20fd398406067f788579c75fdccf59f4e09404ec084b015965e342d94327b62b2d87da47f730e5fffec73bb85e9a316c41c",
    "signer": "0xAfFf173081Abad6F049C29F679143C0282F7c3DB",
    "userId": "691095857"
  }
}