{
  "manageEntity": {
    "action": "Update",
    "entityId": "294750621",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x12af11aa0c202c2f0a031eedf54bce390246d9f65e5e1c0bd526905539d28465",
    "signature": "0x2af7b938b29ba258002a62de5e271915ab4e08112d9c0df1cf0800e054233ab74c455fbec225fcea75ebad835ec26745905a6eb204103d82f368f4227058d9b31b",
    "signer": "0x79e9a23B839E97A6a53F024E999714242bAb4572",
    "userId": "294750621"
  }
}