Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3dd3d1609bc2cfd4435f58e38154b963b108f3cfeb37e6c9b0b97c9ec1e2facb' 
  AND token = 'EEiJ/tNMUGqna7W47xKQChYSInB4RD1KoUTISoH9fb8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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