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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32a1d204610900717be7fd3ac61df3e047eff8e390b8139740650ad7c807cce2' 
  AND token = 'M9eMaljUDRtyfRZa9x80PMyhfZc1G2TwwX+EBVlOEQI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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