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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62008c9a2694bb091edb5c108fec9b44032a8b36dc431f694040837d57b217dd' 
  AND token = 'nwEC4iv2fO9S4Atm69xXuk0TqYmax1XdC5N5q2Kc8Yk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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