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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '532116f70cfb9f15cfc604887bb808f4736c77b9cdcad9848ea2c10cca4fa3dc' 
  AND token = '7ncskf8tm7u95pk9aA2yAujoA0lv4CPU9mbH6k5hg2k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00059

JSON explain

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