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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dbd433ab4fc20ffb362f2acc2bd58741b22090360e66bc2850b67ac0b7ad9945' 
  AND token = 'kt6SXPShG9QJ/jpCNkvVBH2fGlfS7hlsdsL+jGl7+t0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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