Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '5f1db9d5384e50aa67197acd6f9767daffa097749ec4e82ce037bd21ecd4b8af' 
  AND token = 'VPjzieaQGy1nIqhfNtWlZUIHWxLhWqJifLPZS9V7ipg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}