{
  "manageEntity": {
    "action": "Update",
    "entityId": "653618610",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xad53e7b65ffe6721cdd7899fbc1cf2086525ed4acf9d4efa5316fd860a24225f",
    "signature": "0xfd176a4f4dac3f240e6a3421ebdf1fcc9f9df5c86d9b15f83f458f3815e9eb5f40a5a0100b1555f5a2acdc8c8cd3d4b2c76a42e4c222d99af7ca69d87acff3151b",
    "signer": "0xda56c0f03A5D29828f03c37244abe9bC6ed4536D",
    "userId": "653618610"
  }
}