{
  "manageEntity": {
    "action": "Update",
    "entityId": "491386326",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x46ccadbea8fce1c65fbc1521d1a14beb3eb58da70008ff3e3073c6e3db89e966",
    "signature": "0x9dae8e5c222f6f9092dcb5628d6d84d264307e8ce87c316fd56c4cf370eefcae0345c0951e6077b9f0ec920f15477d768f540077ba85024890f4ea0ed65a7f691c",
    "signer": "0x7bae2bFbA4Dc339400A10B76D2C6373664e15354",
    "userId": "491386326"
  }
}