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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '82193e26000d1f99d90e51d1c853a193c6b692c13f321417fcd56dff71157611' 
  AND token = 'vKVJe8hvuRjdnyd69km+Xbb+42PennVsiAMMCPnP240=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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