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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7601930507b19169494ed4241f542ce18ba4285856e1d9ae33399d27a119b236' 
  AND token = 'EAh9+i77G7epI0ZtK16lYkyh34kAjux25ZIwjEobZxE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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