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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '072af6aed2d3c569942516b0f8e391f56fe4c8d8f38f8148e48504113af6bd90' 
  AND token = 'bAMPZVZMPgkl0p0WbZBFKNvX4pe/qBc+l12yrr9UyLA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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