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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '36cd3780cb5e3f9c3d82bbc91517230b7ac3ae017cbeaac30ab3f1c8f2e15360' 
  AND token = 'Pj5tp+OLGlmuqtUvqBlN0ZV/cTYNcJN0yvxB+aR9mCs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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