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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6084103d08aa035ca2ded01c46f1df779b21cf9e977ca86ea0b62003510411ea' 
  AND token = 'WhsCv0FRGSdiAoR7xf1B5jUAyB5pGWNQRjq344dUfpI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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