Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01d8befe8317ddc2a72fe27020933bdd40c908676d365bb86b65541f9b789660' 
  AND token = 'peDoO5M1h9FKEFbH4hYES4JVgQMlN06B8m2d97qGpEs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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