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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '980810631e25d8737801771c1ae06d3c75aa65919d74967b31ce7f6763982750' 
  AND token = 'T4dPQ7ItEaZ8neA033fagJfqB1ILizO1JaN8MTOclLo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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