{
  "manageEntity": {
    "action": "Update",
    "entityId": "434161820",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb53d7c277f471b30e945ab03f412727fe13516f114e9ae562fa0ee79e5cb66fe",
    "signature": "0x30aad1ad9f5aa1d406c58b98c35bb068fff4bb87cbfe1904db95061ab33cdcec5fc87495ca7dfdd527e62262198394c4deccf20346959a2324e180d1d428e38a1b",
    "signer": "0x0eB6F746E47BF96fe5EB4c1828C520128D0fCfE8",
    "userId": "434161820"
  }
}