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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06290fcf619b5961346e0c3bdce1c574fdb12e82e19224f241d1e5552cb6f627' 
  AND token = 'V2jU6+Jw+r2eXjIXduluNQLEukpgv1G54OKUxjJ145k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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