Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0ba8032b773e5601e444b9468910c90d602c968061a05f5ac09f067c11e95c59' 
  AND token = 'W/UkQ+m/cvW28hI5xP2FH41fXkI8Q0YuwyZN6pAiaYM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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