Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'ecfc834a03918de04a0b31efab995f5cee1c8c0ee92cfdd4201c5845854fd20d' 
  AND token = 'vu+fzyYI4iR4taXEb2Zp+3MZSstZ163NfNoWTsYR8X0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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