{
  "manageEntity": {
    "action": "Update",
    "entityId": "913447155",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x412edf35d3dca7a689da7f9516b04e7a64fc98b311dd1e62618d8c2bcd5e6438",
    "signature": "0x726d9a81293c1b9c3388adbece29542a4bc550ee8e71a47cad00998600f755834d6a50bac4bed7e686fe442b3531b0486850c47e35aa229172d88c037cc43d151c",
    "signer": "0x793879Df3D915139b7777E4417869d2B435122E5",
    "userId": "913447155"
  }
}