Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7a0feaec30cc4103bb5760ee514234854ec74282b769ecbfec52849ea7e7d69b' 
  AND token = 'Bt8UYUkiZ7wq4GnpT32UEsr5IzNDtBX6eI7T1P+wTzE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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