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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0690701178bea83165bc06d7d53c7138be3109ef9aa44cd3cf95be9400e6e511' 
  AND token = 'uWaY3rlXnnJ/mfbCdRswvXTBY4KAxjx1mbCeYnRNQtw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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