Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8791442b61457d00e39884f3dbe6040ac80d0459716e540a1c442272defd8dfa' 
  AND token = 'DMUePUfkx9S+uNCFv4P8Cc4Odsrybgi8Fq900TH4C+I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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