Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '7e066849a5ac8f492ed4eb5412b80ed54fe69aa830af793cb53430fae77c3ef1' 
  AND token = 'riAexi+zos1LaNObq4POxIV9EgnTX+DckR2hcPSbskI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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