Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '460a09a6bce9eb2e03a1a1945133c9cf96dcd0be478786b54f39e63fb2efc750' 
  AND token = 'kCFSx74wLyW4dUrGX678L+nV5mha2SypyQ+hnAffuSU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00649

JSON explain

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