Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '308d26ed63c44314f3224e9778b37ffa17d44066f3f24f1f26ae118283355d4d' 
  AND token = 'lcN2DbRbrm4uQ/ViJwYc63TuIA9jnOF3VPn54isBIf8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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