Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a024a7cb96195b51c09f91fc7990f95acef1c69467164f3e7783579d566943e9' 
  AND token = 'IV9yHpnIn3Zgno6CjXt/hgzv+k9VGhD7izxZTIB9D50=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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