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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c01a4acab2e5bc34f3879473cc8d4a4fa2f372d2dd6fb9f185a23e2cf7e6b8b6' 
  AND token = 'PoycpzBhcvnDSpg8g8h9w2MooCh7Pi/KN3eRCAF3ZRA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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