{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6cf9516c75aad3a48c592adf8a40b5777b21f72de502c2d992c7f3f2167c8733",
    "signature": "0x5335e636da9565a3735a47dcde0941fc769a3f25e90c4f571b916f8e12fed9194fee3e8e4bb2faff6944562fa8dd0469b110781b86e282a4d6c92403635fb21c1c",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}