Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '95d0127703fb4d6a3b05b024fb3ae04abe20ed0300524881472064263918fafc' 
  AND token = '3OdCNXiuDqLSJr+U5ND/t5T3uQAgROIJ+sSLoQcRj04=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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