Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '361d97d0045514c3c92fcd6f9576bb9d50cc5b6b4b40ae0c6e5fc832b49ca93e' 
  AND token = '8gzUS99jbhoFD6CsyVBneP5JOi+yVY1JNMkbq5C0Mhk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00077

JSON explain

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