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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e62a14c0e0a1191e56d21732b02d0218bf269d02bad241b91cb342db6615130d' 
  AND token = 'KaKg/SNKS0Rf9rp2qFSQFxbJcYVnWtlcQ/JJ3D6R0nM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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