Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e99a0b9b9f3a950f68b39fd932a47ff3100284116105d46880a0d6906808092f' 
  AND token = 'tb5xF28iESgWbxqmNmq4XkOKAfDG75j7paZGPkgCr7c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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