Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '7da976111397efff8a414c30f485312e9112fc892b9151b17fe12370c9512964' 
  AND token = 'hjuq2iNtHXdj34mf0Utu2ftzGLhhAPzQWTaHazAQ+mI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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