Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cf2f311dddc816cce47e27a02aa5b304319c5aaeefaa809c5c94fbbc66c2b47b' 
  AND token = 'lcApOR5oaBcQFF0qVstCwquKT/3e0l6A9fJUMXP5AV8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00236

JSON explain

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