Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '2319f90c4a00e2f44476c858fdf7e03020da8877c6a436053ce2b0d4e61dc775' 
  AND token = 'pdVhlYAlhQ9apIuSGeMSclLtQM95GioJUZMT70e8cpQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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