Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd64f2587daa020327f3d793f115307574c6b25533b47e1209619c2e6bb213d7f' 
  AND token = 'fBauk8Y9nv0jdXfGc5EZ2jh2Jzg3hrLu4pb0ne785aA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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