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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9bfd0b32f1ce870e3761b79d7b45ef47a5a2ce8d448eb9e4c3d0bd5fc3ca26ec' 
  AND token = 'nGfb0xu2gXqHPKD9PX4q1KTjuVHIEVu9BpfiPV48ahA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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