SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1053f9aa7e926d35f074a80419470bbe4c1e79719f4ae569cc108aa5f9fbd283' 
  AND token = 'ZF7jgNJPQ6Fe2W0fq0Ihp8FbpNBURbn0A7hMglaPYFA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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