{
  "manageEntity": {
    "action": "Update",
    "entityId": "495403607",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2abdd0b5ff611fe0984f561c1959033c9e61ca40c5ed6cbb1ccb4d22a492dcbb",
    "signature": "0xdf65d5068d58a25f537b9e5bf328d79ef62ff184d586aa7ddd0e1a96a3b628ed4a8bc2f82e19aa86504ec0d1911f6d9110a2b2b79274329b8d2c284556ea79d21c",
    "signer": "0x9D19f3A167B4Ec3E71B5410C5c326F6dd015b474",
    "userId": "495403607"
  }
}