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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2c10ca8550e74c56d0651cc5d460e4fcdebbe114d02d45c8d9a3826376626d99' 
  AND token = '0D6VCzld8pPUPgHd2hRXsKOb+cKrGLPQj8WOoUg9SBc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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