Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5d772ec7dcf6b2636d8667deba8916c2d31842dafacb396dd99f164a4ae8061d' 
  AND token = 'PIgzEmRSag3ksx9TAF7RAG2QOuBCsNlMoXP0EOujX+4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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